- This storm is in transition to forward propagation on its flanking line
- W012287S
- Storm transition to forward propagation. Looking east, this Cumulonimbus cloud is in the process of changing from a typical storm which builds new towers on its south side flanking line to a storm complex which propagates forward, building updrafts farther forward while anvils and rain are left behind at the back. This changeover is usually forced by excessive outflow.
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